The effect of 4-week omega-3 fatty acids supplementation and endurance training on blood lipids and endurance performance of young men

Authors

Abstract

 Background and Objective: Although endurance training or omega-3 fatty acids consumption
have beneficial effects on cardiovascular system, but it seems that their
simultaneous use have more benefits. This study investigated the effect of
4-week omega-3 fatty acids supplementation and endurance training on blood
lipids and endurance performance of young men.   Materials and Methods: Forty untrained overweight young men with high cholesterol and
triglyceride were randomly divided into "omega-3", "endurance
training", "omega-3 and endurance training" and
"control" groups and participated in a 4-week test. Supplement groups
consumed an omega-3 capsules per day. Training groups trained 3 sessions per
week and with 65% maximal heart rate for 20 minutes in the first week. Exercise
intensity and duration were increased 5 percent and 4 minutes respectively
every week. Blood samples were collected before and after the test period and
triglyceride, cholesterol, HDL and LDL concentrations were measured. Endurance
performance of Subjects was assessed by the Bruce test.    Results: In the "endurance training" and "omega-3 and
endurance training" groups, triglyceride and cholesterol concentrations
significantly decreased and maximal oxygen consumption increased. HDL
concentrations of "omega-3", "endurance training" and
"omega-3 and endurance training" groups significantly increased and
LDL concentration of "omega-3 and endurance training" group had a
significant decrease.   Conclusion: Endurance training or omega-3 fatty acids consumption improve
blood lipids and endurance performance and combined effects of omega-3
consumption and endurance training has apparently the most favorable effect on
these variables. 

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